Effect of Finite Extensibility on the Equilibrium Chain Size
Effect of Finite Extensibility on the Equilibrium Chain Size
复制标题
有限延展性对平衡链尺寸的影响
DOI:
10.1002/mats.201000009
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发表时间:
2010
影响因子:
1.4
通讯作者:
G. Sadowski
中科院分区:
文献类型:
--
作者:
B. Miao;T. A. Vilgis;S. Poggendorf;G. Sadowski
We investigate the finite‐extensibility effect on the equilibrium size of a single polymer chain by using a Flory‐type calculation. The finite extensibility of the chain is effectively taken into account by modifying the Gaussian stretching energy to a non‐Gaussian form which recovers the harmonic spring behavior in the limit of weak stretch and diverges when the chain extension approaches the total contour length. In general, the finite extensibility decreases the equilibrium size of the chain compared to that obtained from Flory's classic theory, due to a steeper free energy or effective potential of the chain generated by the finite‐extensibility effect. It is illustrated clearly that, for a chain with a short contour length and/or with strong repulsions between monomers, the finite‐extensibility correction is important and necessary to be taken into account. A typical system where the finite extensibility plays an important role is suggested to be the highly charged and highly crosslinked hydrogel.
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DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
T. Vilgis;H. Kilian
通讯作者:
H. Kilian
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
T. Vilgis;H. Kilian
通讯作者:
H. Kilian
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
V. H. Rolón;M. Wagner;C. Luap;T. Schweizer
通讯作者:
T. Schweizer
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
S. Misra;S. Varanasi
通讯作者:
S. Varanasi
DOI:
10.1051/jphys:0198900500240353500
发表时间:
1989-12-15
期刊:
JOURNAL DE PHYSIQUE
影响因子:
--
作者:
SHIM, DFK;CATES, ME
通讯作者:
CATES, ME